568 
A Fungus on Butler. 
I planted some spores on sterilised slices of potato, on drops of sterile 
nutrient gelatine, and on filter-paper that had been moistened with 
sterile broth. All these substrata were kept damp, and sheltered 
Fio. 3. — Low power view of part of gelatine 
colony. ( x about 80.) 
Fie. 4.— Diagrammatic view of branching 
system of fungus grown on gelatine. 
from contamination, in a moist chamber. Germination occurred on 
all three media with great rapidity, and in a few days the site of 
inoculation was covered with a dense mass of dark-brown mould- 
growth. The gelatine culture being on a slide 
| had only to be placed under the microscope, when 
the following details were at once made out (figs. 
3, 4, 5). The youngest portions of the hyphse, 
spread out a long distance into the gelatine, were 
colourless and septate only at lengthy intervals. 
Passing inwards towards the centre of the colony 
the hyphse gradually assumed an olive hue, and 
gave off aerial branches, many of which ended in 
spore-chains. Several rather lengthy, often some- 
what echinulate, basidial cells were produced close 
together from the end of the filament, and each 
bore a string of ovate spores which were distinctly 
beaked at each end so as to look like a somewhat 
loosely strung chaplet. The older spores were often 
uniseptate. Many of them had budded and thus 
given rise to secondary spore- chains. I observed 
a single basidial cell bear two distinct sterigmata, 
each of which gave rise to a distinct spore-chain. 
Another curious feature was that the basidial 
cells were articulated to the hyphse by two points, 
one at each side of their basal end. Between these 
two points there was a concavity of the basal 
end. The spore-bearing hyphse are often produced as lateral off- 
shoots of submersed hyphse. 
The central part of the culture-spot is quite opaque, from the 
Fig. 5. — Portion of fig. 
3 showing the con. 
ncxion between th e 
spores. (x250.) 
